P
P

Postgrey

Postgrey is a Postfix policy server implementing greylisting developed by David Schweikert.

Cost / License

  • Free
  • Open Source

Platforms

  • Linux
  • Self-Hosted
Postgrey alternatives  
0likes
10alternatives
0articles

Features

  1.  Spam Filter
  2.  Mail Server

 Tags

Postgrey News & Activities

Highlights All activities

Recent activities

  • Nicolas-HA added Postgrey as alternative to Klar

Postgrey information

Postgrey was added to AlternativeTo by shiki on and this page was last updated .
No comments or reviews, maybe you want to be first?

Official Links

What is Postgrey?

Postgrey is a Postfix policy server implementing greylisting developed by David Schweikert.

When a request for delivery of a mail is received by Postfix via SMTP, the triplet CLIENT_IP / SENDER / RECIPIENT is built. If it is the first time that this triplet is seen, or if the triplet was first seen, less than 5 minutes ago, then the mail gets rejected with a temporary error. Hopefully spammers or viruses will not try again later, as it is however required per RFC.